Should not have been a problem. At the bottom of that wash there is a rock perfectly placed in the middle of the trail (as long as nobody moves it...) I think you caught that rock with the wrong part of your tire and went down. Happened to me in the Sandias. I flew headfirst into a stump and nearly knocked myself out. Busted my glasses, dented my helmet, and put an incurable wobble in the front wheel.

Looks like to me he washed out in the loose dirt to the down side of the rock. With the soil so loose and dry it is much more likely to happen.
The weather's good but the trails are too damn dry....

Left today to ride Faulty under sunny skies and rising temperatures. Faulty was dry as a bone . Ended the ride with snow falling and diving temperatures. Made me forget the pain of the SS. The precip is great even though the trail selection will narrow. Wait, this isn't the Faulty Trail thread...